Charles Rynd Milles Messenger was a British Army officer and writer. He served for many years in the Royal Tank Regiment (19 years as a Regular, 13 years as a Territorial) before becoming a military historian and defense analyst after his retirement from active service. In addition to having published more than forty books during his long career, he also carried out several historical analyses for the Ministry Of Defence and was a writer and/or adviser for several TV documentary series.
It was a nice history book, but it will be a challenge for people who don't particularly care for history. It has many pictures which makes the book more compelling but there's a lot of detail which can be boring for many people. So overall this isn't the best history book but it's worth giving a shot